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Richmond Gear GM85373

Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 12 Bolt Ratio: 3.73

Richmond Gear GM85373
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836-GM85373

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Richmond Gear GM85373 Excel Ring & Pinion Gear Set GM 8.5" & 8.625" 12 Bolt Ratio: 3.73 $164.95
Excel Ring & Pinion Gear Set
GM 8.5" & 8.625" 12 Bolt
  • Ratio: 3.73
  • Teeth: 41-11

  • Richmond Gear GM85373 Details

    8.5 & 8.625" GM

  • Fits Carriers 2.73 and Higher
  • 8.50 & 8.625" Diameter Ring Gear
  • 1.626" Pinion Diameter
  • 30 Spline Pinion
  • 10 Hole Oval Cover

    Applications:

  • 1977-96 Buick Full Size
  • 1977-91 Blazer (K Series Front)
  • 1973-77 Apollo, Regal, Century
  • 1971-74 Biscayne
  • 1984-87 Grand National
  • 1971-75, 77-79 Skylark, GS
  • 1970-76 Chevelle
  • 1971-96 Chevy Full Size
  • 1970-79 Chevy II, Nova
  • 1971-81 Camaro, Firebird, TA
  • 1971-77 Cutlass
  • 1976-78 Electra
  • 1973-77 Gran Sport
  • 1970-81 GTO, Firebird
  • 1973-74 LeSabre
  • 1971-89 Olds Full Size
  • 1985-88 Olds, Hurst
  • 1971-89 Pontiac Full Size
  • 1985-88 Hurst Olds
  • 1973-75, 77-79 Omega
  • 1971-77 Grand Prix, Lemans
  • 1971-74, 96-96 Roadmaster
  • 1971-77 Ventura, Phoenix
  • 1972-81 Z28
  • 1970-76 Olds F65
  • 1980-02 C10, C15 (Rear)
  • 1980-02 K10, K15 (Rear)
  • 1977-87 K10, K20 (Front)
  • 1980-96 Suburban (Rear)
  • 1977-91 Suburban (Front)
  • 1973-76 El Camino
  • 1970-96 G10, G20 Van

  • Specifications:

    Gear Ratio
    3.73
    Axle Type
    GM 8.5 in.
    Carrier Series
    3
    Cover Bolts
    10
    Installation Kit Included
    No
    Pinion Gear Teeth
    11
    Pinion Shaft Diameter (in.)
    1.626
    Pinion Spline Count
    30
    Quantity
    Sold as a set
    Ring and Pinion Ratio
    3.73:1
    Ring Gear Bolts
    10
    Ring Gear Diameter (in.)
    8.5
    Ring Gear Rotation
    Standard
    Ring Gear Teeth
    41
    Manufacturer's Part Number:
    GM85373

    Richmond Gear Excel Ring and Pinion Sets are manufactured to tight tolerances. The gear design, tooling, steel selection, heat treat recipes and quality requirements are specified by Richmond. Designed to withstand the abuse of high performance and daily driving.

    Choose The Gear Ratio That Is Best For Your Vehicle
    .

    Does Richmond Gear GM85373 fit your vehicle?

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    1990-1995 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: BEAUVILLE

    1976 CHEVROLET NOVA

    • CC: 4097
    • Liter: 4.1
    • SubModel: CONCOURS
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1982 CHEVROLET K20 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1985 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1973 CHEVROLET G20 VAN

    • CC: 5736
    • Liter: 5.7
    • SubModel: SPORTVAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: LIMITED

    1973 CHEVROLET CAPRICE

    • CC: 6556
    • Liter: 6.6
    • SubModel: ESTATE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1986 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    1972 CHEVROLET BROOKWOOD

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1982 CHEVROLET G20 VAN

    • EngineType: ALL
    • SubModel: BASE

    1982 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1970 CHEVROLET NOVA

    • CC: 2507
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 153
    • EngineType: L4 ( 2.5 L / 153 )

    1983 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: BONAVENTURE

    1973 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 CHEVROLET IMPALA

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1974 PONTIAC VENTURA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC VENTURA

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1971 CHEVROLET G20 VAN

    • CC: 4097
    • Liter: 4.1
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: C
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1973 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: Z28
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET CAPRICE

    • CC: 6556
    • Liter: 6.6
    • SubModel: CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 PONTIAC VENTURA

    • Liter: 3.8
    • SubModel: SJ
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1981 GMC K2500 SUBURBAN

    • Liter: 4.8
    • SubModel: HIGH SIERRA
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1982-1985 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: BASE

    1976 PONTIAC LEMANS

    • Liter: 4.1
    • SubModel: SPORT
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972-1973 PONTIAC FIREBIRD

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1986 GMC C2500 SUBURBAN

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1971 CHEVROLET G10 VAN

    • Liter: 5.0
    • SubModel: SPORTVAN
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 PONTIAC BONNEVILLE

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: U
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1972-1973 PONTIAC GRAND SAFARI

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1975 BUICK SKYLARK

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1972-1973 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985 GMC K1500 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980-1984 BUICK ELECTRA

    • EngineType: ALL
    • SubModel: LIMITED

    1973 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • SubModel: DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977-1980 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: ALL

    1979 GMC K2500 SUBURBAN

    • EngineType: ALL
    • SubModel: BASE

    1981 CHEVROLET C20 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973 CHEVROLET BEL AIR

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981 CHEVROLET C10 PICKUP

    • CC: 4097
    • Liter: 4.1
    • SubModel: SCOTTSDALE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: X
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1972-1974 OLDSMOBILE DELTA 88

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1971 PONTIAC BONNEVILLE

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 CHEVROLET EL CAMINO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 GMC K2500 PICKUP

    • Liter: 6.5
    • Aspiration: T
    • SubModel: SIERRA SLE
    • Engine Vin: F
    • CUI: 395
    • EngineType: V8 ( 6.5 L / 395 )

    1977-1981 PONTIAC CATALINA

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1981 BUICK ELECTRA

    • Liter: 5.7
    • SubModel: PARK AVENUE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1976 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC SPORT

    1976 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 BUICK APOLLO

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1976-1977 PONTIAC VENTURA

    • Liter: 5.7
    • SubModel: SJ
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET CHEVELLE

    • CC: 6588
    • Liter: 6.6
    • SubModel: NOMAD
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1973 CHEVROLET BEL AIR

    • CC: 7441
    • Liter: 7.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1991 CHEVROLET C2500 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1975 BUICK APOLLO

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1974 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC LEMANS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975 PONTIAC FIREBIRD

    • Liter: 4.1
    • SubModel: ESPRIT
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1982-1983 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    1981 CHEVROLET G10 VAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: SPORTVAN
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980-1981 BUICK LESABRE

    • EngineType: ALL
    • SubModel: BASE

    1974 CHEVROLET G20 VAN

    • CC: 5736
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990-1991 CHEVROLET K2500 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    1984 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    1992 CHEVROLET C2500 PICKUP

    • Liter: 7.4
    • SubModel: SCOTTSDALE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: LJ
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1990-1993 GMC G25/G2500 VAN

    • Liter: 6.2
    • SubModel: RALLY
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1985 BUICK LESABRE

    • EngineType: ALL
    • SubModel: LIMITED

    1989-1991 CHEVROLET V2500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1976 CHEVROLET NOVA

    • Liter: 5.7
    • SubModel: CONCOURS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982 CHEVROLET G20 VAN

    • EngineType: ALL
    • SubModel: CHEVY VAN

    1981 CHEVROLET G20 VAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BEAUVILLE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1991 CHEVROLET C2500 PICKUP

    • Liter: 7.4
    • SubModel: CHEYENNE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1977 PONTIAC VENTURA

    • Liter: 5.0
    • SubModel: SJ
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985 PONTIAC PARISIENNE

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 PONTIAC BONNEVILLE

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1987-1988 CHEVROLET V20 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1985 GMC C1500 PICKUP

    • Liter: 6.2
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: C
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1998 CHEVROLET C1500 PICKUP

    • EngineType: ALL
    • SubModel: WT

    1971 CHEVROLET KINGSWOOD

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990-1994 CHEVROLET C1500 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1983 PONTIAC PARISIENNE

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET EL CAMINO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET KINGSWOOD

    • CC: 6588
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: S
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1981 GMC K2500 PICKUP

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1976-1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: SJ
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 PONTIAC FIREBIRD

    • CC: 5737
    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1999 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1986 CHEVROLET K10 PICKUP

    • EngineType: ALL
    • SubModel: CUSTOM

    1988-1989 CHEVROLET K2500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1977 PONTIAC LEMANS

    • Liter: 6.6
    • SubModel: SPORT
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1976 CHEVROLET NOVA

    • CC: 5031
    • Liter: 5.0
    • SubModel: CONCOURS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1992-1995 BUICK ROADMASTER

    • EngineType: ALL
    • SubModel: BASE

    1988 CHEVROLET R20 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    1980-1981 PONTIAC FIREBIRD

    • Liter: 4.9
    • SubModel: ESPRIT
    • CUI: 301
    • EngineType: V8 ( 4.9 L / 301 )

    1974 PONTIAC LEMANS

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SPORT
    • Engine Vin: A
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CONCOURS ESTATE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982-1983 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SILVERADO

    1973-1974 BUICK APOLLO

    • EngineType: ALL
    • SubModel: ALL

    1973 CHEVROLET CAPRICE

    • CC: 6556
    • Liter: 6.6
    • SubModel: CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )
    GM85373 - Richmond Gear Excel Ring & Pinion Sets is rated 5.0 out of 5 by 1.
    • 2016-12-05T08:46CST
    • bvseo_cps, prod_bvrr, vn_cps_3.4.0
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    • loc_en_US, sid_10001_10001_1075612, PRD, sort_relevancy
    • clientName_jegs
    Rated 5 out of 5 by from Known for good quality workmanship/and ease . Good quality & Installation went well and gears are not noisy.
    Date published: 2015-02-14
    • 2016-12-05T08:46CST
    • bvseo_cps, prod_bvrr, vn_cps_3.4.0
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_1075612, PRD, sort_relevancy
    • clientName_jegs
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